プルダウンメニューに初期値を与えたい

<div class="table">
      
      <table class="hyou">
           <tr>
                <th>所属</th>
                <th>面談場所</th>
                <th>面談時間</th>
           </tr>
           {% for syozoku in BelongMaster %}
           <tr class="{{ syozoku.number_b }}">
                <td >{{ syozoku.name_b }}</td>
                <td>{% if syozoku.mendanplace_b == 0 %}
                        {{ form.mendanplace_b:0 }} <!--ここがうまくいかない-->
                    {% elif syozoku.mendanplace_b == 1 %}
                       {{ form.mendanplace_b:1 }} <!--ここがうまくいかない-->
                    {% else %}
                        {{ form.mendanplace_b:2 }}　<!--ここがうまくいかない-->
                    {% endif %}
                </td>
                <td>{% if syozoku.mendantime_b == 0 %}
                        {{ form.mendantime_b:0 }}　<!--ここがうまくいかない-->
                    {% elif syozoku.mendantime_b == 1 %}
                        {{ form.mendantime_b:1 }}　<!--ここがうまくいかない-->
                    {% else %}
                        {{ form.mendantime_b:2 }}　<!--ここがうまくいかない-->
                    {% endif %}
                </td>
           </tr>
           {% endfor %}
      </table>
      
      <a class="under" href="{% url 'account:logout' %}"> ログアウト </a>
  </div>

class SyozokuView(CreateView):
    
    template_name = "account/Syozoku.html"
    
    form_class = SyozokuForm
    
    def get_context_data(self, **kwargs):
        content = super().get_context_data(**kwargs)
        content.update({
                'BelongMaster':BelongMaster.objects.all(),
                })
        
        return content

class BelongMaster(models.Model):

    number_b = models.CharField(max_length=4, primary_key=True)
    name_b = models.CharField(max_length=32)
    mendanplace_b = models.IntegerField(
        choices = MENDAN_STATE,
        default = 0)
    mendantime_b = models.IntegerField()
    
    def __str__(self):
        
        return (self.number_b) + ':' + (self.name_b) + ':' + str(self.mendanplace_b) + ':' + str(self.mendantime_b)

MENDAN_STATE = [
    (0,'Zoom'),
    (1,'本社'),
    (2,'支社'),
    ]

MENDAN_TIME = [
    (1,'30分'),
    (2,'1時間'),
    (3,'20分(お昼休憩)'),
    ]